3-62. TRACTION MOTOR ASSEMBLY (cont)
When traction motor or under-locomotive equipment must be inspected while the engine is running,
remove excitation from the main generator and set airbrakes. Move reverser to center position and
remove from the controller. This will prevent accidental movement of the locomotive and possible injury
If repair of traction motor is limited to resurfacing commutator, refer to step 32g below.
If it is necessary to remove axle bearings while traction motor is under locomotive, procedures below will
apply with the exception of step 5. The upper axle bearing halves can be removed by jacking the traction
motor frame up just enough to relieve the weight on the bearing, revolving the bearing around the axle,
and slipping it off below.
Remove drain plug (1) and drain axle bearing oil reservoirs.
Remove five bolts (2) and lockwashers (3) and remove upper and lower gear case (4).
Traction motor must be blocked with wheels up or supported. Wheels must be removed from the traction motor.
If axle bearing caps (7) sticks, a flat cold chisel may be used to loosen cap. Place chisel in the crack between
cap and motor frame. Tap cold chisel on one side and then the other until cap is loose.
Remove eight bolts (5), lockwashers (6), and axle bearing cap (7).
Remove two traction motor lower support axle bearing halves (8).
Remove eight bolts (9), lockwashers (10), two covers (11), and gaskets (12).